Flavobathelium R. Lücking, Aptroot & G. Thor (1997)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Flavobathelium. Genus of unknown placement (incertae sedis); Pyrenulales.

Type Information: Type: Flavobathelium epiphyllum R. Lücking, Aptroot & Thor.

Taxonomic Literature: Lücking R., Lichenologist 31(3): 269-289 (1999); Lücking P., Aptroot A. & Thor G., Lichenologist 29: 221-228 (1997).

Biogeography: Checklist records: Guianas.

Ecology: Biotroph; lichenized; epiphyllous.

Lichen Photobionts: Primary photobiont present; trentepohlioid. Primary photobiont taxonomy: Trentepohlia; Trentepohliaceae; Trentepohliales, Ulvophyceae, Eukariota. Secondary photobiont absent.

Thallus: Crustose, not subdivided parts. Thallus Outline: Soon disappearing or persistent. Upper Surface: Green or grey; special structures absent. Lower Surface: Attached by the whole lower surface; special structures absent or present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Medulla: Iodine reaction in Lugol's solution negative; not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, forming all across the thallus surface, not emerging, stromatic. Wall: Not fused or fused. Margin: Indistinct; external filaments absent. Exciple: Brown or grey. Periphyses: Absent. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed to distinctly anastomosed. Hypothecium: Brownish yellow.

Asci: Tholus thickened, not amyloid; ocular chamber indistinct; dehiscence bitunicate; exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, fusiform, 10-14 µm long, 2.5-3.5 µm wide, obtuse or aciculate; septa present; transversally septate, 3 (5)-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; stipitate, formed all accross the thallus surface.

Conidiogeneous Cells: Apical. Conidia: Globose or curved; septate.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)